I have an 07 tahoe and it started randomly setting off stabilitrack and making grinding noise while slowing down the speed with tight slower left turns a few months ago. Turn it off and back on and it resets itself. Chevy dealer inspection found nothing wrong and nothing on computer memory, wheel bearings were good. Now this week it has happened 3times in a day and the stabilitrack sensor isn't going off beforehand. Any idea what could be going on? Thanks.